Last-Modified and If-Modified-Since Headers
This plugin adds the ‘Last-Modified’ header to each post and returns the ‘304 Not Modified’ header to the client without a body in the response if he sent the ‘If-Modified-Since’ header and the post has not changed…
Consider an alternative
Last-Modified and If-Modified-S… shows warning signs in 2026 — compare the alternatives below before installing. It runs on 200+ sites, is rated 5/5 and was last updated 5 years ago, and scores 33/100 on our health check.
- Small user base (200+ active installs)
- Very few reviews so far
- No update in 5 years
- Only tested up to WordPress 5.7 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & supportDaily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Last-Modified and If-Modifi… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| headers | >100 |
| if-modified-since | >100 |
| last-modified | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 2 reviews
About Last-Modified and If-Modified-Since Hea…
From the official readme · v1.0Description
This plugin adds the ‘Last-Modified’ header to each post and returns the ‘304 Not Modified’ header to the client without a body in the response if he sent the ‘If-Modified-Since’ header and the post has not changed since that date.
Installation
- Upload ‘Last-Modified and If-Modified-Since Headers’ folder to the ‘plugins’ directory.
- Activate the plugin through the ‘Plugins’ menu in WordPress.
For developers
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Best Last-Modified and If-Modified… alternatives
All headers plugins →FAQ
Last-Modified and If-Modified-Since…: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 4, 2026
Is Last-Modified and If-Modified-S… free?
Yes. Last-Modified and If-Modified-S… is free to download and use from the official WordPress.org plugin directory.
Is Last-Modified and If-Modified-S… safe to use in 2026?
Last-Modified and If-Modified-S… shows warning signs in 2026 — compare the alternatives below before installing. It runs on 200+ sites, is rated 5/5 and was last updated 5 years ago, and scores 33/100 on our health check.
How many websites use Last-Modified and If-Modified-S…?
Last-Modified and If-Modified-S… is active on 200+ WordPress websites and has been downloaded 3,135 times since it launched in July 2021. It was downloaded 121 times in the last 30 days.
Does Last-Modified and If-Modified-S… work with WordPress 7.1?
Last-Modified and If-Modified-S… is officially tested up to WordPress 5.7.19, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Last-Modified and If-Modified-S… last updated?
The latest version, 1.0, was released on July 20, 2021 (5 years ago).
Who makes Last-Modified and If-Modified-S…?
Last-Modified and If-Modified-S… is developed and maintained by zubovd.
What are the best alternatives to Last-Modified and If-Modified-S…?
The most popular alternatives to Last-Modified and If-Modified-S… are Headers Security Advanced &… (90K+ installs), WP Hide & Security Enhancer (50K+ installs) and Redirect (5K+ installs).
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